Double-input transmission device and vertical curtain

Abstract

The utility model relates to a double-input transmission device and a vertical curtain, the double-input transmission device comprises a transmission case, a dimming power shaft, an opening and closing power shaft, a dimming transmission group and an opening and closing transmission group, a mounting rack is arranged in the transmission case, and the transmission case is divided into a first transmission space and a second transmission space by the mounting rack. The dimming transmission group is distributed in the first transmission space, the opening and closing transmission group is distributed in the second transmission space, the dimming power shaft is connected with the dimming transmission group, and the opening and closing power shaft is connected with the opening and closing transmission group. The dimming transmission set and the opening and closing transmission set are arranged in independent spaces in the transmission box respectively, do not interfere with each other, and can be reasonably arranged to transmit power.

Description

Technical Field

[0001] The utility model relates to the technical field of shading, in particular to a double-input transmission device and a vertical curtain. Background Art

[0002] The vertical curtain consists of three major parts: a track assembly, a power assembly and a transmission assembly. The power assembly transmits the opening and closing power through the transmission assembly and drives the opening and closing belt installed on the track assembly to move the curtain to open and close; or, the power assembly transmits the dimming power through the transmission assembly and drives the dimming mechanism installed on the track assembly to move the curtain to rotate and dim.

[0003] For example, Chinese public document CN115211711A discloses a highly integrated dual-drive electric curtain, in which an opening and closing transmission mechanism and a dimming transmission mechanism are detachably provided in the gearbox, the main motor is connected to the ball body through the opening and closing transmission mechanism, and the auxiliary motor is connected to the transmission rod body through the dimming transmission mechanism. The gearbox adopts a combination of bevel gear + spur gear + synchronous pulley to realize transmission, and the paired gears in the gearbox can be replaced.

[0004] However, the opening and closing transmission mechanism and the dimming transmission mechanism provided in the above-mentioned gearbox are limited by the wall of the gearbox housing, the opening and closing transmission structure and the dimming transmission mechanism constructed by the gear set are both located in a cavity, the assembly and adjustment between the gears are difficult, the drive structure layout is unreasonable, and the power transmission output stability is poor, so there are technical problems that need to be improved. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the embodiment of the utility model provides a dual-input transmission device and a vertical curtain to solve the technical problems of unreasonable gear set structure layout and poor stability of power output structure.

[0006] According to a first aspect of an embodiment of the utility model, a dual-input transmission device is provided, including a transmission box, a dimming power shaft, an opening and closing power shaft, a dimming transmission group and an opening and closing transmission group, a mounting frame is arranged in the transmission box, the mounting frame separates the transmission box into a first transmission space and a second transmission space, the dimming transmission group is distributed in the first transmission space, the opening and closing transmission group is distributed in the second transmission space, the dimming power shaft is connected to the dimming transmission group, and the opening and closing power shaft is connected to the opening and closing transmission group.

[0007] In one embodiment, the transmission box is provided with a dimming power port and an opening and closing power port, the dimming power shaft passes through the dimming power port, the opening and closing power shaft passes through the opening and closing power port, and the dimming power shaft and the opening and closing power shaft are arranged in parallel and spaced apart.

[0008] In one embodiment, the center line of the dimming power shaft and the center line of the opening and closing power shaft are arranged in parallel, and in the length direction protruding from the surface of the transmission box, the length of the dimming power shaft is less than or equal to the length of the opening and closing power shaft.

[0009] In one embodiment, the dimming transmission group and the opening and closing transmission group are respectively connected to the mounting frame in back-to-back relation.

[0010] In one embodiment, the dimming transmission group includes a dimming transmission gear rotatably connected to the mounting frame and a dimming gear meshingly connected to the dimming transmission gear, the dimming power shaft and the dimming transmission gear are meshingly connected, and the dimming gear is used to connect the dimming component to output the power transmitted by the dimming transmission gear.

[0011] In one embodiment, the dimming gear is installed on the dimming assembly, the mounting frame is provided with a dimming column, and the dimming gear is sleeved on the dimming column to locate the meshing connection position of the dimming transmission gear and the dimming gear;

[0012] Alternatively, the dimming gear is mounted on the mounting frame, and the dimming assembly is plug-in drivingly connected to the dimming gear.

[0013] In one embodiment, the opening and closing transmission group includes an opening and closing drive tooth, an intermediate gear, a transmission bevel gear and an output pulley that are meshed and connected in sequence. The opening and closing power shaft passes through the mounting frame and is fixedly connected to the opening and closing drive tooth. The output pulley is used to connect the opening and closing assembly.

[0014] In one embodiment, the transmission box includes a front shell and a rear cover plate, the mounting frame is mounted against the front shell, the mounting frame and the front shell jointly position the dimming transmission group, the rear cover plate is buckled into the front shell, and the rear cover plate and the mounting frame jointly position the opening and closing transmission group.

[0015] In one embodiment, at least one protruding positioning column is provided on the surface of the transmission box, and the positioning column is used to locate the assembly position of the transmission box.

[0016] The second invention of the utility model discloses a vertical curtain, including a track assembly, a power output device and the dual-input transmission device as described above, wherein the transmission box is assembled and connected with the track assembly, and the power output device is driven and connected with the dimming power shaft and the opening and closing power shaft respectively.

[0017] The technical solution provided by the embodiment of the utility model can include the following beneficial effects: the dimming transmission group and the opening and closing transmission group are respectively arranged in independent spaces in the transmission box, without interfering with each other, and can reasonably arrange the transmission power. The dimming power axis and the opening and closing power axis are respectively connected to the corresponding driving mechanisms to realize independent transmission and control of power, and the overall compactness is high.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0020] Figure 1 is a schematic structural diagram of a dual-input transmission device according to an exemplary embodiment.

[0021] Figure 2 is a schematic diagram of an exploded structure of a dual-input transmission device according to an exemplary embodiment.

[0022] Figure 3 It is a structural schematic diagram showing a dimming transmission group assembled on a mounting frame according to an exemplary embodiment.

[0023] Figure 4 It is a schematic diagram of the connection structure of an opening and closing transmission group according to an exemplary embodiment.

[0024] Figure 5 It is a schematic structural diagram of an assembly of an opening and closing transmission group and a mounting frame according to an exemplary embodiment.

[0025] Figure 6 is a schematic structural diagram of a vertical blind according to an exemplary embodiment.

[0026] In the figure, there are transmission box 10; front shell 11; dimming power port 111; opening and closing power port 112; belt hole 113; positioning column 114; dimming output hole 115; rear cover 12; auxiliary shaft 121; positioning boss 122; dimming transmission group 20; dimming power shaft 21; dimming transmission gear 22; opening and closing transmission group 30; opening and closing power shaft 31; opening and closing drive teeth 32; intermediate gear 33; transmission bevel gear 34; output pulley 35; mounting frame 40; dimming gear 41; dimming column 411; axial boss 42; center shaft 43; rotating hole 44; rotating boss 45; power output device 50; track assembly 60. DETAILED DESCRIPTION

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 4 As shown, the utility model provides a dual-input transmission device, which includes a transmission box 10, a dimming power shaft 21, an opening and closing power shaft 31, a dimming transmission group 20 and an opening and closing transmission group 30. A mounting frame 40 is arranged in the transmission box 10, and the mounting frame 40 separates the transmission box 10 into a first transmission space and a second transmission space. The transmission box 10 is a thin-walled box structure, and its interior is hollow. The transmission box 10 is provided with a hole structure that penetrates and connects to the internal space of the transmission box 10. The mounting frame 40 is located in the transmission box 10, and separates the interior of the transmission box 10 into two independent first transmission spaces and a second transmission space.

[0031] The dimming transmission group 20 is distributed in the first transmission space, and the opening and closing transmission group 30 is distributed in the second transmission space. The dimming transmission group 20 is connected to the dimming power shaft 21, and the opening and closing transmission group 30 is connected to the opening and closing power shaft 31. The dimming transmission group 20 and the opening and closing transmission group 30 are respectively arranged in independent spaces in the transmission box 10, without interfering with each other, and can reasonably arrange the transmission power. The dimming power shaft 21 and the opening and closing power shaft 31 are connected to the corresponding driving mechanisms respectively, realizing independent transmission and control of power, dual power independent transmission and independent output settings, and high overall compactness.

[0032] In one embodiment, the transmission box 10 is provided with a dimming power port 111 and an opening and closing power port 112, and the dimming power shaft 21 passes through the dimming power port 111. The opening and closing power shaft 31 passes through the opening and closing power port 112, and the dimming power shaft 21 and the opening and closing power shaft 31 are arranged in parallel and spaced apart. The dimming power port 111 and the opening and closing power port 112 are both arranged through the installation wall of the transmission box 10 to construct a hole structure with intervals or different areas of continuous holes, so that the dimming power shaft 21 and the opening and closing power shaft 31 protrude from the transmission box 10 at intervals to achieve independent power transmission. The dimming power axis 21 and the opening and closing power axis 31 are arranged side by side, including that the center line of the dimming power axis 21 and the center line of the opening and closing power axis 31 are arranged in parallel; or, in the vertical plane, the lateral projection of the center line of the dimming power axis 21 intersects or is inclined relative to the lateral projection of the center line of the opening and closing power axis 31, and, in the horizontal plane, the lateral projection of the center line of the dimming power axis 21 intersects or is parallel to the lateral projection of the center line of the opening and closing power axis 31.

[0033] When the center line of the dimming power shaft 21 and the center line of the opening and closing power shaft 31 are arranged in parallel, the dual input transmission device is assembled to the power output device 50, and synchronous assembly power output can be achieved, and the connection assembly is accurate and efficient. Preferably, the dimming power shaft 21 and the opening and closing power shaft 31 are spaced apart and distributed on one side of the transmission box 10, and the output end of the dimming transmission group 20 and the output end of the opening and closing transmission group 30 are spaced apart and distributed on the other side of the transmission box 10.

[0034] Preferably, in the length direction of the protruding transmission box 10 surface, the length of the dimming power shaft 21 is less than or equal to the length of the opening and closing power shaft 31. Both the dimming power shaft 21 and the opening and closing power shaft 31 are cantilever structures protruding from the transmission box 10, so as to be plugged into the power output end of the power output device 50, thereby realizing quick disassembly and connection, and the disassembly and assembly efficiency is high. When the length of the dimming power shaft 21 is consistent with the length of the opening and closing power shaft 31, it can be adapted to the power output end of the same height, and the size and power transmission are stable. When the length of the dimming power shaft 21 is less than the length of the opening and closing power shaft 31, the connection position of the power output end can be adjusted according to the design requirements to adapt to different power structures. In addition, the length of the dimming power shaft 21 is greater than the length of the opening and closing power shaft 31, and it can also adapt to different power transmission scenarios.

[0035] The dimming transmission group 20 and the opening and closing transmission group 30 are independently arranged and interfere with each other less, and the transmission parts of the dimming transmission group 20 and the opening and closing transmission group 30 are respectively located in independent spaces in the transmission box 10, which can realize partition arrangement and independent lubrication. Preferably, the dimming transmission group 20 and the opening and closing transmission group 30 are respectively connected to the mounting frame 40 with their backs facing each other. The mounting frame 40 is used to directly mount and connect the dimming transmission group 20 and / or the opening and closing transmission group 30; or, the mounting frame 40 is used to jointly mount and connect the dimming transmission group 20 and / or the opening and closing transmission group 30 in combination with other shell parts of the transmission box 10, thereby forming a combined assembly limiting structure, which improves the assembly stability and convenience of the gear transmission parts from a structural point of view.

[0036] like Figures 1 to 4 As shown, in one embodiment, the transmission box 10 includes a front shell 11 and a rear cover plate 12, and the front shell 11 and the rear cover plate 12 are complementary structures to form a box body. Preferably, the front shell 11 is a box body in the shape of a recessed groove, and the rear cover plate 12 cooperates to close the opening of the front shell 11. The mounting frame 40 abuts against the front shell 11, and the mounting frame 40 separates the internal space of the front shell 11 to form a first transmission space and a second transmission space. Optionally, the front shell 11 is provided with a positioning rib, and the mounting frame 40 abuts against the positioning rib to limit the installation position of the mounting frame 40. The mounting frame 40 and the front shell 11 jointly position the dimming transmission group 20, the rear cover plate 12 is buckled on the front shell 11, and the rear cover plate 12 and the mounting frame 40 jointly position the opening and closing transmission group 30.

[0037] Among them, the dimming transmission group 20 includes a dimming transmission gear 22 rotatably connected to the mounting frame 40 and a dimming gear 41 meshingly connected to the dimming transmission gear 22, and the dimming power shaft 21 is meshingly connected to the dimming transmission gear 22. The dimming gear 41 is used to connect the dimming component to output the power transmitted by the dimming transmission gear 22. One end of the dimming power shaft 21 is rotatably mounted on the mounting frame 40, the output end of the dimming power shaft 21 passes through the front shell 11 and the matching parts of the dimming power shaft 21 and the front shell 11 are rotatably connected, so that the transmission box 10 and the mounting frame 40 jointly define the dimming power shaft 21. Optionally, the end of the dimming power shaft 21 is plug-connected to the mounting frame 40 and is rotatably connected to the mounting frame 40.

[0038] Optionally, the mounting frame 40 is provided with a protruding rotating boss 45, and the dimming power shaft 21 is sleeved on the rotating boss 45 and rotatably connected to the mounting frame 40. The dimming power shaft 21 is jointly defined by the mounting frame 40 and the transmission box 10, and the dimming power shaft 21 can be assembled to the gear box together with the mounting frame 40, which is convenient to assemble and has a reasonable layout.

[0039] The dimming transmission gear 22 can be rotatably connected to the mounting frame 40. Optionally, the mounting frame 40 is provided with an axial boss 42. The dimming transmission gear 22 is sleeved on the axial boss 42 of the mounting frame 40 and meshed with the dimming power shaft 21, wherein the dimming power shaft 21 is located inside the transmission box 10 and is provided with a toothed portion.

[0040] The dimming gear 41 is used in conjunction with the dimming component, and the front housing 11 is provided with a dimming output hole 115 corresponding to the dimming gear 41 to output the dimming power. In an optional embodiment, the dimming gear 41 can be rotatably mounted on the mounting frame 40, and the dimming gear 41 is meshed and connected with the dimming transmission gear 22. The dimming gear 41 is provided with a groove structure or a convex column structure, and the dimming gear 41 is plug-fitted and connected with the dimming component so that the dimming gear 41 transmits power to the dimming component.

[0041] In another optional embodiment, the dimming gear 41 is installed on the dimming component, the mounting frame 40 is provided with a dimming column 411, the dimming component is connected with the dual-input transmission device, and the dimming gear 41 is plugged and matched with the dimming column 411. The dimming gear 41 is sleeved outside the dimming column 411 and can rotate relative to the dimming column 411. The dimming column 411 is meshed and connected with the dimming transmission gear 22. The dimming column 411 is used to locate the meshing connection position of the dimming transmission gear 22 and the dimming component. The dimming column 411 is integrally formed with the mounting frame 40 or detachably connected to form a shaft-like structure. The dimming component is plugged into the transmission box 10 and directly connected with the dimming transmission gear 22, thereby simplifying the structure of the transmission box 10 and improving the tightness of the dimming component and the dual-input transmission device.

[0042] like Figures 4 to 5 As shown, in one embodiment, the opening and closing transmission group 30 includes an opening and closing drive tooth 32, an intermediate gear 33, a transmission bevel gear 34 and an output pulley 35 that are meshed and connected in sequence, the opening and closing power shaft 31 passes through the rotating hole 44 on the mounting frame 40 and is fixedly connected to the opening and closing drive tooth 32, and the output pulley 35 is used to connect the opening and closing assembly. The intermediate gear 33 is fixed to the shaft-like protrusion of the mounting frame 40 or the transmission box 10, the opening and closing drive tooth 32 is fixed to the end of the opening and closing power shaft 31, and the transmission box 10 axially limits the opening and closing drive tooth 32. Preferably, the rear cover plate 12 is provided with an auxiliary shaft 121 matching the opening and closing drive tooth 32, and the auxiliary shaft 121 is plugged into the center hole of the opening and closing drive tooth 32 to improve the rotation stability of the opening and closing drive tooth 32. Preferably, a locking piece is installed on the front housing 11, and the opening and closing power shaft 31 passes through the locking piece, and the locking piece is used to lock the transmission box 10 and the power output device 50.

[0043] A tubular protruding central shaft 43 is provided on the mounting frame 40, and the intermediate gear 33 is mounted on the central shaft 43. The rear cover plate 12 is provided with a positioning boss 122 matching the central shaft 43, and the positioning boss 122 is plugged into the central shaft 43 to define the installation position of the intermediate gear 33 and the rear cover plate 12. The transmission bevel gear 34 includes a spur gear portion meshing with the intermediate gear 33 and a bevel gear portion meshing with the output pulley 35. Preferably, the transmission bevel gear 34 is connected to the rear cover plate 12 through a pin shaft, and the bevel gear portion of the transmission bevel gear 34 faces one side of the mounting frame 40 to form an inserted assembly. Further preferably, the output pulley 35 is mounted on the front housing 11 to match the transmission bevel gear 34. Among them, the front housing 11 is provided with a belt hole 113 corresponding to the spur gear portion of the transmission bevel gear 34.

[0044] like Figure 1 to Figure 2 As shown, in one embodiment, at least one protruding positioning column 114 is provided on the surface of the transmission box 10, and the positioning column 114 is used to locate the assembly position of the transmission box 10. The surface of the transmission box 10 is provided with a positioning column 114, and the positioning column 114 is inserted to locate the installation position of the transmission box 10 to adapt to the track assembly 60 or the power output device 50 used by the vertical curtain to improve the assembly accuracy of the transmission box 10. Optionally, two positioning columns 114 are provided, and the two positioning columns 114 are spaced apart.

[0045] like Figure 1 , Figure 2 and Figure 6 As shown, the dual-input transmission device disclosed in the above embodiment is applied to a vertical curtain, wherein the vertical curtain includes a track assembly 60, a power output device 50 and a dual-input transmission device, the transmission box 10 is assembled and connected with the track assembly 60, and the power output device 50 is driven and connected with the dimming power shaft 21 and the opening and closing power shaft 31 respectively. The dual-input transmission device is fixedly connected to the end of the track assembly 60, and the dual-input transmission device is adapted to the structure of the power output device 50 to independently output the power of the power output device 50, so as to realize the independent operation of the opening and closing function and the dimming function of the vertical curtain, and the assembly is convenient. Preferably, the power output device 50 uses a single motor to output two different power shafts, or the power output device 50 uses dual motors to output two power shafts respectively.

[0046] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0047] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A dual input transmission device, characterized in that: The invention comprises a transmission box (10), a dimming power shaft (21), an opening and closing power shaft (31), a dimming transmission group (20) and an opening and closing transmission group (30); a mounting frame (40) is arranged in the transmission box (10); the mounting frame (40) separates the transmission box (10) into a first transmission space and a second transmission space; the dimming transmission group (20) is distributed in the first transmission space; the opening and closing transmission group (30) is distributed in the second transmission space; the dimming power shaft (21) is connected to the dimming transmission group (20); and the opening and closing power shaft (31) is connected to the opening and closing transmission group (30).

2. The dual input transmission device according to claim 1, characterized in that: The transmission box (10) is provided with a dimming power port (111) and an opening and closing power port (112) extending therethrough; the dimming power shaft (21) extends out from the dimming power port (111); the opening and closing power shaft (31) extends out from the opening and closing power port (112); the dimming power shaft (21) and the opening and closing power shaft (31) are arranged in parallel and at intervals.

3. The dual input transmission device according to claim 2, characterized in that: The center line of the dimming power shaft (21) and the center line of the opening and closing power shaft (31) are arranged in parallel, and in the length direction protruding from the surface of the transmission box (10), the length of the dimming power shaft (21) is less than or equal to the length of the opening and closing power shaft (31).

4. The dual input transmission device according to claim 1, characterized in that: The dimming transmission group (20) and the opening and closing transmission group (30) are respectively connected to the mounting frame (40) in a back-to-back manner.

5. The dual input transmission device according to claim 1, characterized in that: The dimming transmission group (20) comprises a dimming transmission gear (22) rotatably connected to the mounting frame (40) and a dimming gear (41) meshingly connected to the dimming transmission gear (22); the dimming power shaft (21) and the dimming transmission gear (22) are meshingly connected; the dimming gear (41) is used to connect to a dimming component so as to output the power transmitted by the dimming transmission gear (22).

6. The dual input transmission device according to claim 5, characterized in that: The dimming gear (41) is mounted on the dimming assembly, the mounting frame (40) is provided with a dimming column (411), and the dimming gear (41) is sleeved on the dimming column (411) to locate the meshing connection position of the dimming transmission gear (22) and the dimming gear (41); Alternatively, the dimming gear (41) is mounted on the mounting frame (40), and the dimming component is plug-drivenly connected to the dimming gear (41).

7. The dual input transmission device according to claim 1, characterized in that: The opening and closing transmission group (30) comprises an opening and closing drive tooth (32), an intermediate gear (33), a transmission bevel gear (34) and an output pulley (35) which are meshed and connected in sequence; the opening and closing power shaft (31) passes through the mounting frame (40) and is fixedly connected to the opening and closing drive tooth (32); and the output pulley (35) is used to connect the opening and closing assembly.

8. The dual input transmission device according to claim 1, characterized in that: The transmission box (10) comprises a front housing (11) and a rear cover plate (12); the mounting frame (40) is mounted against the front housing (11); the mounting frame (40) and the front housing (11) jointly position the dimming transmission group (20); the rear cover plate (12) is buckled onto the front housing (11); the rear cover plate (12) and the mounting frame (40) jointly position the opening and closing transmission group (30).

9. The dual input transmission device according to claim 1, characterized in that: The surface of the transmission box (10) is provided with at least one protruding positioning column (114), and the positioning column (114) is used to locate the assembly position of the transmission box (10).

10. A vertical blind, characterized in that: It comprises a track assembly (60), a power output device (50) and a dual-input transmission device as claimed in any one of claims 1 to 9, wherein the transmission box (10) is assembled and connected to the track assembly (60), and the power output device (50) is respectively drivingly connected to the dimming power shaft (21) and the opening and closing power shaft (31).

Images